Annor Silversocks contain pure silver&comma; a naturally occurring element&period;This construction means the silver is on the outside of the fiber allowing its many natural benefits and properties to perform at their optimum&period;Annor Silver socks are high quality finished textile socks for everyday wear&comma; just like ordinary socks&period;It will not wash off&comma; wear off or diminish in effectiveness over time and will last the lifetie of the productPURE SILVER FIBER